WASSC Observations and recording skills

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Across
  1. 2. substance that absorbs moisture without dissolving
  2. 6. reaction that absorbs heat from the surroundings
  3. 8. solid left behind on filter paper
  4. 10. closeness of a reading to the true value
  5. 12. reaction that releases heat to the surroundings
  6. 14. crystalline solid that loses water of crystallisation
  7. 15. cloudy appearance of a mixture
  8. 18. information noted using the senses during an experiment
  9. 19. insoluble solid formed when solutions are mixed
Down
  1. 1. liquid that passes through filter paper
  2. 3. CHANGE visible sign of a chemical reaction
  3. 4. closeness of repeated readings to each other
  4. 5. conclusion drawn from an observation
  5. 7. description of a solution with no visible colour
  6. 9. bubbling or fizzing seen when a gas is released
  7. 11. format used to record readings neatly
  8. 13. solid that absorbs water from air and dissolves
  9. 16. EVOLVED bubbles given off during a reaction
  10. 17. indicator paper used to test acidity or alkalinity
  11. 20. sharply strong smell, as of ammonia